90mm (3.55") Aperture -- Erect Image Viewing -- Compact Table-Top Tripod -- Celestron's Maksutov-Cassegrain telescope is an extremely versatile and compact viewing system. It is ideal for bird-watching, general observing and astronomy. With optional adapters, it can become a telephoto lens for 35mm cameras or video. -- Comes complete with our 21mm RKE eyepiece, a 45 prism diagonal for comfortable viewing, a sturdy table-top tripod and complete instructions. Scope will also fit on any standard photo tripod. Shown with eyeguard (not included). -- Magnification: 46X -- Eyepiece: 21.5mm f.l., 45 apparent field 1.25" O.D. -- Objective Diameter: 90mm (3.55") -- F-Ratio: f11 -- Field of View: 1.0 -- Focus: Helical Barrel Type -- Focal Length: 000mm -- Close Focus: 5 ft. -- Dimension: 7.75" L x 4.75" dia. -- Weight: 3 lb. 4 oz. |